Pressurizing the cooling system?
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Elder User
Joined: May 2007
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From: Florida
Pressurizing the cooling system?
So my question is ...is there a special tool that is needed to pressurize the system or can i make my own ... i need to find out if i have a bad fuel cup or if it is something else ...If the tools can be made just let me know what i need thanks everyone in advance!
Logistics Pro
Joined: Jun 2005
Posts: 4,243
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From: AZ
I built one years ago...pretty easy to build. You will need:
1 - a hand pump OR a pressure hose fitting
2 - a check valve
3 - a pressure gauge w/ T-fitting to line
4 - a sacrificial radiator cap (you will have to drill a hole through the top to accept the check valve)
5 - a clamp to clamp off the line to the degas reservoir
So in order from air in to radiator it would go like this:
fitting or pump > check valve > gauge > radiator cap...
There are so many variations of parts that you could buy, but all of these need to be put together in the order above.
Then you just clamp the line to the degas, attach the home-made pressure tester, and pressurize the coolant system. I have to admit, that I had everything I needed when I built mine...zero cost. Here is a link to one you can buy
1 - a hand pump OR a pressure hose fitting
2 - a check valve
3 - a pressure gauge w/ T-fitting to line
4 - a sacrificial radiator cap (you will have to drill a hole through the top to accept the check valve)
5 - a clamp to clamp off the line to the degas reservoir
So in order from air in to radiator it would go like this:
fitting or pump > check valve > gauge > radiator cap...
There are so many variations of parts that you could buy, but all of these need to be put together in the order above.
Then you just clamp the line to the degas, attach the home-made pressure tester, and pressurize the coolant system. I have to admit, that I had everything I needed when I built mine...zero cost. Here is a link to one you can buy
Thread Starter
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Elder User
Joined: May 2007
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From: Florida
anyone have pics of a homade kit? i have someone checking if they can borrow a real kit but i would like to see if i can make one for me to keep and use.
As for the items needed it doesnt sound so hard to get a hold of but since im not so sure what all the items look like i want to see if anyone has pictures thanks again guys...
As for the items needed it doesnt sound so hard to get a hold of but since im not so sure what all the items look like i want to see if anyone has pictures thanks again guys...
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Elder User
Joined: May 2007
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From: Florida
yeah im trying to narrow down my search ... a while ago i started getting smoke out the exhaust and well first thought was my turbo ...so i rebuilt it ...didnt work ...bought a new turbo still not the problem ... did a compression test ...that passed ... and well i did notice a bit of water missing out of the coolant degas bottle so im wondering if it could be a bad fuel cup or injector o-rings ... so im trying to narrow my search down but its kinda getting to me seeing as i havent ben able to drive the truck for a few months now and i diff dont want to go back to the dealer. They told me i need a new engine ... lucky i had a friend that works for that dealer and he told me the guy that checked out my truck didnt really do any tests just parked it in his bay... let it run looked at the exhaust and signed it off as needing a new engine.
Last edited by 99SevenPoint3; Oct 10, 2007 at 02:42 PM.
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Senior User
Joined: Feb 2007
Posts: 180
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From: Maple Ridge, Canada
When my sleeve was leaking I had diesel floating on top of the coolant in the degas bottle. no smoke, and the engine ran fine. The fuel pressure is much higher than the cooling system, so you won't lose coolant through a cracked sleeve.
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Brett Foote
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From: The Dalles Oregon
yea i had the same thing, a ton of coolant fule getting in to the coolant it was no good, got to the point of getting like half a gallon every few weeks, when i change the injector sleeves It turned out I had 4 cracked ones
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Elder User
Joined: May 2007
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From: Florida
well see thats the thing the truck seems to me to run fine its just i get alot of smoke and some how or another i have what looks to be an oily substance coming out of the tail pipe aswell so it could either be a mixture of oil and fuel or colant and oil ... so jus to make sure i dont have a cracked cup i want to pressurzie the system and then move on to replacing all the o-rings ... im at loss with my problem im sure it cant be something that can be fixed its just my luck i have to go through alot of steps to figure it out.
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Elder User
Joined: May 2007
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From: Florida
just wondering if i could use something like this and get a check valve or the thing that is used on wheels and hook that up to the radiator cap?
<a href="http://photobucket.com" target="_blank"><img src="http://i70.photobucket.com/albums/i94/jcortez863/Tire_pressure_with_inflating_gauge.jpg" border="0" alt="Photo Sharing and Video Hosting at Photobucket"></a>
<a href="http://photobucket.com" target="_blank"><img src="http://i70.photobucket.com/albums/i94/jcortez863/Tire_pressure_with_inflating_gauge.jpg" border="0" alt="Photo Sharing and Video Hosting at Photobucket"></a>
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Elder User
Joined: May 2007
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From: Florida
and this type of tire valve would it work or would i be waisting my time ?
<a href="http://photobucket.com" target="_blank"><img src="http://i70.photobucket.com/albums/i94/jcortez863/tirevalve.jpg" border="0" alt="Photo Sharing and Video Hosting at Photobucket"></a>
<a href="http://photobucket.com" target="_blank"><img src="http://i70.photobucket.com/albums/i94/jcortez863/tirevalve.jpg" border="0" alt="Photo Sharing and Video Hosting at Photobucket"></a>
Senior User
Joined: Feb 2007
Posts: 180
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From: Maple Ridge, Canada
I have only used the proper tool (we have one at work), but my bet is you'll get that to work. If you have a sacrificial rad cap w that valve and good bike pump I se no problem. I'm a mountain biker and those pumps with the gauge on them are not cheap though. Find someone into biking and borrow theirs, or if you have a compressor that you can set the psi or only let it run until you get 15lbs. just my .02